Tuesday, December 11, 2001 - 4:23 PM
0635

Effects of acaricide applications and residues on Tetranychus urticae and Phytoseiulus persimilis

Kenneth W. Cote1, Peter B. Schultz2, and Edwin E. Lewis1. (1) Virginia Tech, Department of Entomology, 320 Price Hall, Blacksburg, VA, (2) Virginia Tech, Hampton Roads AREC, 1444 Diamond Springs Road, Virginia Beach, VA

Many new chemicals are available for mite suppression. It is important to understand how these products affect both phytophagous and predatory mites. Acaricides were applied directly to Buddleia x davidii cuttings infested with T. urticae. The number of all life stages of mites was counted 3, 7 and 14 days after application. Acaricide residues were also tested using a leaf disk system to determine their effects on adult P. persimilis and T. urticae, 1, 3, 7 and 14 days after application..

Species 1: Acari Tetranychidae Tetranychus urticae (twospotted spider mite)
Species 2: Acari Phytoseiidae Phytoseiulus persimilis
Keywords: mites, pesticide residues

The ESA 2001 Annual Meeting - 2001: An Entomological Odyssey of ESA